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Technical Data Sheet
D51PD26D ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The LOCK SET,MORTISE is a the manufacturer industrial component. Key specifications include width: 1.125 INCHES NOMINAL IN, length: 2.250 INCHES NOMINAL IN, bolt_type: REGULAR BEVEL, thickness: 2.750 INCHES NOMINAL BACKSET IN, face_shape: BEVELED, knob_shape: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-413-6527, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
D51PD26D
NSN: 5340-00-413-6527
FSC: 5340
CAGE: 06474 — SCHLAGE LOCK CO (USA)
SPECIFICATIONS
width1.125 INCHES NOMINAL IN
length2.250 INCHES NOMINAL IN
bolt_typeREGULAR BEVEL
thickness2.750 INCHES NOMINAL BACKSET IN
face_shapeBEVELED
knob_shapeROUND
design_typeLATCH BOLT
knob_quantity2
operation_methodOUTSIDE KEY AND INSIDE TURN KNOB AND OUTSIDE TURN KNOB LATCH BOLT
special_featuresCASE SHAPE:TUBULAR;MATERIAL THICKNESS:1.375 IN.THK IN
features_providedROSE AND STRIKE AND SCREW
locking_mechanism_typePIN TUMBLER
NSN5340-00-413-6527
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D51PD26D MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
NONDEFINITIVE SPEC/STD DATA: 161A-4 TYPE A
LOCKING MECHANISM TYPE: PIN TUMBLER
KNOB QUANTITY: 2
DESIGN TYPE: LATCH BOLT
THICKNESS: 2.750 INCHES NOMINAL BACKSET IN
BOLT TYPE: REGULAR BEVEL
LENGTH: 2.250 INCHES NOMINAL IN
WIDTH: 1.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA161A-4 TYPE A
LOCKING MECHANISM TYPEPIN TUMBLER
KNOB QUANTITY2
DESIGN TYPELATCH BOLT
THICKNESS2.750 INCHES NOMINAL BACKSET IN
BOLT TYPEREGULAR BEVEL
LENGTH2.250 INCHES NOMINAL IN
WIDTH1.125 INCHES NOMINAL IN
SPECIAL FEATURESCASE SHAPE:TUBULAR;MATERIAL THICKNESS:1.375 IN.THK IN
OPERATION METHODOUTSIDE KEY AND INSIDE TURN KNOB AND OUTSIDE TURN KNOB LATCH BOLT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
FFH106-160E-4Upgraded Successor
successor cross-reference
successor
FF-H-106Upgraded Successor
successor cross-reference
successor
A55PDPLY28Upgraded Successor
successor cross-reference
successor
B260PUpgraded Successor
successor cross-reference
successor
BR260Upgraded Successor
successor cross-reference
successor
FFH106-161PUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D51PD26D?
D51PD26D is a LOCK SET,MORTISE.
What parts can replace D51PD26D?
There are 24 known substitutes for D51PD26D: FFH106-160E-4, FF-H-106, A55PDPLY28 and 21 more. Substitute compatibility should be verified for your specific system.
Is D51PD26D still available?
D51PD26D is currently cancelled.
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